Heat treated pallets

Been trying to work out if heat treated pallets are also tannellised.
Google searches show heat treatment as an alternative to fumigation. Starting to suspect that heat treated pallets aren't also treated with a preservative.

Would like to know for sure because have just acquired a splendid stack of pallets from a local factory. Some are painted blue, which we think are definitely treated with rot preventative. Others are natural timber coloured but stamped as heat treated.

We are going to use some of these for outdoor jobs - sheep hurdles, tree protection and some for indoor jobs. So it would be good to know if some are best for outdoor use, and whether we need to treat some of the remainder if we want them to last for any length of time outside.
Also, we have a collection of older, starting to rot pallets, which could be turned into firewood - but only if not impregnated with chemicals that would cause problems in the multi-fuel stove.

Mutton

Supposed to be a question really - can anyone enlighten us as to the chemically treated or untreated nature of pallets and how to tell?

digit

Heat treated pallets a normally used for food, i wouldn't think they treat the timber with chemicals aswell. The blue pallets a rentals they should have ( the property of chep/gkn) stamped on them.

madcat

In that case burn the blue ones quick

vegplot

tiggy wrote:

In that case burn the blue ones quick

It sends up copious amounts of blue smoke to alert the pallet police.

Mutton

The factory said to take them away. They did point to some plastic ones they said we mustn't touch as they were returnable. (Shame - we had some useful, slightly broken, plastic ones a couple of years back that are still replacing the door on the end of the side shed of the barn. Wall of plastic pallets with a tunnel in - sheep think it is great. )

So presumably too old for the rental company to want back.

They are now forming a blue (and red) barrier across one corner of a field, where it joins one of our other fields. Needed an even bigger barrier to stop two of our rams getting together for a through the fence head banging session. They'd demolished the old pallets tied to the small length of common fence so they couldn't see each other.